Overview
Manuals
4-20 mA Inputs
IOTA Wiring
Loop Checks
Features:
- Sixteen coated single-ended 4-20 mA analog-input channels.
- Sixteen-bit conversion with a documented 50 ms input scan.
- Supports nonredundant or redundant Series 8 IOTA arrangements.
8C-PAINA1 is the coated Series 8 high-level analog-input IOM without HART. Its sixteen single-ended channels accept 4-20 mA current from 2-wire or self-powered transmitters through the documented 250-ohm input path. Honeywell specifies 16-bit conversion, a 50 ms scan, 24 VDC operation and 105 mA module current. The absence of HART is a functional distinction and must not be replaced by assuming compatibility from the Series 8 family name alone.
The IOM is documented with 8C-TAIXA1 for a nominal 6-inch nonredundant arrangement or 8C-TAIXB1 for a nominal 12-inch redundant arrangement. Preserve the installed field-power selection, commons, channel numbering, grounding and controller database. Verify the receiving hardware and the approved redundancy design before moving any loop conductors. Honeywell's nominal IOTA lengths describe termination assemblies, not the packed module dimensions; the source does not establish exact shipping size or weight.
The 8C-PAINA1 51454470-175 Honeywell Series 8 Analog Input Module without HART may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell 8C-PAINA1 51454470-175 official technical documentation and product links.
This multi-page Honeywell technical document contains the exact model and its technical data. Apply the values to the supplied type number and verify its revision before installation.
Use the module only for the documented single-ended 4-20 mA current-input path. Verify 2-wire or self-powered transmitter wiring, polarity, loop supply, channel assignment and controller scaling. This execution does not provide HART communication, so device diagnostics cannot be assumed from the analog signal alone.
Match the installed termination architecture before moving conductors. Use 8C-TAIXA1 for the documented nonredundant coated arrangement or 8C-TAIXB1 for the redundant coated arrangement. Preserve field-power selection, commons, grounding and channel numbering, and record every terminal before disconnecting the existing IOM.
Back up the control database before removal. After installation, inject authorized current values across the configured range, verify engineering-unit scaling and alarm limits, inspect channel quality and prove both paths where the redundant IOTA is used.
